| | Collegedale, TN | Stafford Courthouse, VA | United States |
| Rainfall | 50.9 | 42.5 | 38.1 |
| Snowfall | 1.6 | 12.9 | 27.8 |
| Precipitation Days | 100.3 | 117.2 | 106.2 |
| Sunny | 214 | 198 | 205 |
| Avg. July High | 89.4 | 88.3 | 85.8 |
| Avg. Jan. Low | 28.8 | 24.4 | 21.7 |
| Comfort Index (higher=better) | 7.5 | 7.3 | 7 |
| UV Index | 4.7 | 4.2 | 4.3 |
| Elevation ft. | 791 | 207 | 2443 |